The three commercial uses of CFC or Chlorofluorocarbons are :-
- manufacturing of aerosol sprays
- blowing agents for foams and packing materials
- solvents and as refrigerants.
CFC affects the atmosphere by destroying the earth's protective ozone layer which protects the earth against harmful ultraviolet (UV-B) rays and they warm the lower atmosphere of the earth that lead to change of global climate.